KERN & Sohn GmbH Ziegelei 1 D-72336 Balingen email: [email protected]
Phone: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com
Operating instructions Electronic Crane Scales Logbook Regular maintenance and care
KERN HFB Version 1.4 2018-02 GB
HFB-BA-e-1814
HFB-BA-e-1814 2
GB
KERN HFB Version 1.4 2018-02 Operating instructions / logbook Electronic Suspending Balance
Table of Contents 1. Technical Data ______________________________________________________________ 3 1.1 Dimensions _________________________________________________________________ 4 1.2 Nameplate __________________________________________________________________ 5 1.3 EC-Declaration of -Conformity ___________________________________________________ 6 2. General Safety Instructions ___________________________________________________ 7 3. The crane scales at a glance _________________________________________________ 10 3.1 Overview __________________________________________________________________ 10 3.2 Display ____________________________________________________________________ 11 3.3 Keyboard __________________________________________________________________ 12 3.4 Numerical input via the navigation buttons ________________________________________ 12 3.5 Radio remote control _________________________________________________________ 13 3.6 Sticker ____________________________________________________________________ 13 4. Commissioning ____________________________________________________________ 14 4.1 Unpacking _________________________________________________________________ 14 4.2 Checking the original dimensions _______________________________________________ 15 4.3 Rechargeable battery operation _________________________________________________ 15 4.4 Suspending the balance_______________________________________________________ 16 5. Operation _________________________________________________________________ 17 5.1 Safety instructions ___________________________________________________________ 17 5.2 Loading the crane scales ______________________________________________________ 18 5.3 Turn on/off _________________________________________________________________ 21 5.4 Setting the balance to zero ____________________________________________________ 21 5.5 Taring _____________________________________________________________________ 22 5.6 Weighing __________________________________________________________________ 22 5.7 Record weight value (freeze) ___________________________________________________ 23 6. Menu _____________________________________________________________________ 23 7. Adjustment ________________________________________________________________ 25 8. Error messages ____________________________________________________________ 26 9. Cleaning, Repair, Maintenance and Disposal ____________________________________ 27 9.1 Cleaning and Disposal ________________________________________________________ 27 9.2 Regular maintenance and care _________________________________________________ 27 9.3 Checklist „regular maintenance“, (see chapter 9.2) __________________________________ 31 9.4 12-month maintenance (see chap. 9.2) ___________________________________________ 35 10. Appendix __________________________________________________________________ 36 10.1 Checklist „Enhanced maintenance“ (General revision) _______________________________ 36 10.2 List „spare parts and repair of safety-relevant parts“ _________________________________ 37
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1. Technical Data
KERN HFB 150K50 HFB 300K100 HFB 600K200
Readability (d) 50 g 100 g 200 g
Weighing range (max) 150 kg 300 kg 600 kg
Taring range (subtractive) 150 kg 300 kg 600 kg
Reproducibility 50 g 100 g 200 g
Linearity ±100 g ±200 g ±400 g
Recommended adjustment weight, not added (class) 150 kg (M1) 300 kg (M1) 500 kg (M1)
Stabilization time 2 s
Precision 0.2 % of max.
Warm-up time 10 min
Units kg, lb
Allowable ambient temperature 0…+40 °C
Relative humidity 10 to 80 %, non-condensing
Supply voltage 220V - 240V AC 50 Hz
Secondary voltage powerpack 9V, 800 mA
Rechargeable battery (standard equipment)
6 V 1.2 A
Service life – background illumination ON 30 h
Service life – background illumination OFF 40 h
Loading time 12 h
Display Digit height 25 mm
Housing size W x D x H 163 mm x 126 mm x 159 mm
Housing material Synthetic material
Material hook and shackle Nickel plated steel
Net weight 2 kg
Remote control (standard equipment)
Battery Size 23A (1 x 1.5V) W x D x H 48 x 16 x 95 mm
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1.1 Dimensions
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1.2 Nameplate
1 KERN Logo
2 Model designation
3 Weighing range [Max]
4 Data for power supply
5 Company address
6 Readability [d]
7 Date of manufacture
8 CE mark
9 Disposal symbol
0 Serial number
HFB-BA-e-1814 6
1.3 EC-Declaration of -Conformity
KERN & Sohn GmbH www.kern-sohn.com Ziegelei 1 72336 Balingen-Frommern Germany
+0049-[0]7433-9933-0 +0049-[0]7433-9933-149 [email protected]
Déclaration de conformité UE | EU Declaration of Conformity | EU-Konformitätserklärung
FR Nous déclarons par la présente sous notre entière responsabilité que le produit concerné par cette déclaration respecte les exigences des directives mentionnées ci-après.
EN We hereby declare and assume sole responsibility for the declaration that the product complies with the directives hereinafter.
DE Wir erklären hiermit unter alleiniger Verantwortung, dass das Produkt, auf das sich diese Erklärung bezieht, mit den nachstehenden Richtlinien übereinstimmt.
Type | Type | Typ Nº de série | Serial no. | Seriennr.
HFB 150K50, HFB 300K100, HFB 600K200 xxxxxxxxxx
Marquage CE Mark applied CE Kennzeichnung
Directive UE EU directive EU-Richtlinie
Normes Standards Normen
2006/42/EC (MD) EN 13155:2003/A2:2009
2011/65/EU (RoHS) EN 50581:2012
2014/30/EU (EMC)
EN 55022:2010 EN 55024:2010 EN 61000-3-3:2013
2014/35/EU (LVD)
EN 60065:2014 EN 60950-1:2006/A2:2013 EN 61010-1:2010
Date | Date | Datum: 20.04.2016
Lieu de délivrance: Place of issue:
Ort der Ausstellung:
72336 Balingen, Germany
Albert Sauter KERN & Sohn GmbH
Signature: Signature:
Signatur:
Directeur Exécutif Managing director Geschäftsführer
Further language versions you will find online under:
www.kern-sohn.com/ce
http://www.kern-sohn.com/ce
HFB-BA-e-1814 7
2. General Safety Instructions Duties of the owner-operator Follow the national accident prevention regulations as well as the working, operating and safety regulations of the owner-operator. Observe all safety regulations of the crane manufacturer. The balance may only be used for the proposed purpose. Any type of use which
is not specified in these operating instructions, will be considered as improper use. The customer is solely responsible for material damage and injury of persons resulting from an improper use, Messrs. KERN & Sohn will not be liable under any circumstance. Messrs. KERN & Sohn cannot be held liable, if the crane scales are modified or used improperly and if damage is resulting from such use.
Carry out regular maintenance and care of the crane scales, the crane and the load suspension devices (see chapter 9).
Log the test result and keep it in the logbook. Organizational measures Only trained and instructed staff may operate the balance. Make sure that the operating instructions are kept nearby the operation site of the
crane scales. Assembly, commissioning and maintenance should only be carried out by trained
specialists. Repair of safety-relevant pieces may only be carried out by KERN or by service
partners authorized by Messrs. KERN. (competence certificate or training). Use original spare parts only. All repairs and spare parts must be documented by the service partner (see list,
chap. 10.3). All maintenance must be documented (see checklist chap. 9.3). Load suspending components may only be exchanged as a complete spare parts
set. The dimensions of the new components must be noted (see checklist chapter 9.3).
Ambient conditions Never operate the crane scales in explosive environment. The serial version is
not explosion protected. Operate the crane scales only under environmental conditions as specified in
these operating instructions (especially in chapter 1 „Technical data“). Do not expose the crane scales to strong humidity. Non-permitted condensation
(condensation of air humidity on the appliance) may occur if a cold appliance is taken to a considerably warmer environment. In this case, acclimatize the disconnected appliance for ca. 2 hours at room temperature.
Do not operate the crane scales in corrosive environment. Protect the crane scales against high humidity, vapours and dust.
HFB-BA-e-1814 8
Major display deviations (incorrect weighing results) may be experienced should electromagnetic fields (e.g. due to mobile phones or radio equipment), static electricity accumulations or instable power supply occur. Change location or remove source of interference.
Proper use The balance you purchased is intended to determine the weighing value of material to be weighed. It is intended to be used as a “non-automatic“ balance, i.e. the material to be weighed is suspended on the crane hook only vertically, manually, carefully and without jerks. As soon as a stable weighing value is reached the weighing value can be read. Use the crane scales only for lifting and weighing of freely movable loads. Danger of injury due to improper use. Not allowed are e.g.:
- Exceeding the allowed nominal load of crane, crane scales or any type of load attachment devices
- Conveying persons, - Pulling loads over an inclined surface, - Tearing-off, pulling or towing loads.
Modifications or reconstructions of the crane scales or of the crane are not allowed.
Improper Use Do not use balance for dynamic weighing. In the event that small quantities are removed or added to the material to be weighed, incorrect weighing results can be displayed due to the “stability compensation“ in the balance. (Example: Slowly draining fluids from a container suspended on the balance.) Do not leave permanent load suspended on the balance. This may damage the measuring system as well as safety-relevant parts. The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing. Warranty Warranty claims shall be voided in case
Our conditions in the operation manual are ignored The appliance is used outside the described uses The appliance is modified or opened Mechanical damage and damage caused by media, liquids, Natural wear and tear The appliance is improperly set up or incorrectly electrically connected The measuring system is overloaded Safe working Do not stand underneath suspended loads! Position the crane in a way that the load is lifted vertically. When working with the crane and crane scales wear personal safety equipment
(helmet, safety shoes etc.).
HFB-BA-e-1814 9
Monitoring of Test Resources In the framework of quality assurance the measuring-related properties of the balance and, if applicable, the testing weight, must be checked regularly. The responsible user must define a suitable interval as well as type and scope of this test. Information is available on KERN’s home page (www.kern-sohn.com) with regard to the monitoring of balance test substances and the test weights required for this. In KERN’s accredited DKD calibration laboratory test weights and balances may be calibrated (return to the national standard) fast and at moderate cost. Testing upon acceptance When receiving the appliance, please check packaging immediately, and the appliance itself when unpacking for possible visible damage. Initial Commissioning In order to obtain exact results with the electronic balances, your balance must have reached the operating temperature (see warming up time chap. 1). During this warming up time the balance must be connected to the power supply (mains, accumulator or battery). The accuracy of the balance depends on the local acceleration of gravity. Strictly observe hints in chapter Adjustment. Check the original dimensions, see chap. 4.2. Shutdown and storage Take off the crane scales from the crane and dismantle all load attachment
devices from the crane scales. Do not store the crane scales at open air
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3. The crane scales at a glance The crane scales are a multi-purpose and cost-saving solution for overhead weighing applications such as e.g. recycling, metal processing, machine engineering, transport and logistics. With the radio remote control operation will be more comfortable yet.
3.1 Overview
Fig. 1: Scales front and rear view Fig. 2: Radio remote control
1 Eyelet 7 Antenna 2 Display 8 Keyboard,
see chapter 3.5 3 Keyboard 4 Safety bracket 5 Hook, revolvable 6 Second display
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3.2 Display
[] over the symbol appears if
the capacity of the rechargeable battery will soon be exhausted. The balance will be ready to operate for about another 30 minutes, then it will switch off automatically.
a the weight is in the area around the zero point
TARE the scales have been tared
HOLD the data-hold function is active
kg the current weighing unit is „kg“
lb the current weighing unit is „lb“
The LED display above is illuminated when the battery is being recharged.
HFB-BA-e-1814 12
3.3 Keyboard
Button Designation Description of function
UNIT button
Switch-over weighing unit.
Exit menu, back to weighing mode.
HOLD button The weight display is „frozen“ via the HOLD button until the HOLD-button is pressed anew.
TARE button Taring
ZERO button Corrects the zero point of the balance. The display is set to zero.
ON/OFF key Turn on or off the balance
3.4 Numerical input via the navigation buttons
Button Navigation button Function
ESC Delete
Digit selection
Increase flashing digit
Terminate input
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3.5 Radio remote control The balance can be operated by the radio remote control like by a keyboard. All functions (excepted ON/OFF) can be selected. The red LED must light up when any button is pressed. If it does not light up, the batteries in the remote control must be exchanged. Range on free surface (free of buildings) approx. 20 m.
3.6 Sticker
Do not stand or go under suspended loads. Do not use on building sites. Suspended loads have to be observed constantly.
(Example)
Do not exceed the nominal load of crane scales.
The product meets the requirements of the German Equipment and Product Safety Act.
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4. Commissioning
+ Always observe chapter 2 „General Safety Instructions“!
+ Before every use check the firm fit of the nut (A) and lock washer (B), see chap. 9.2 „Regular maintenance“.
4.1 Unpacking
SAFETY
INSTRUCTIONS for protection against
break
Once delivered and unpacked, crane scales will not be taken back.
The crane scales have been sealed by Messrs. KERN. The eyelet and the hooks are sealed by Sella tape. The packaging is also sealed by adhesive tape.
+ Broken seal obliges to purchase. Thanks for your comprehension. Your KERN Quality assurance team
Only use original packaging for returning. Make sure that all parts are completely present.
• Crane scales
• Mains adapter
• Remote control
• Operating instructions (logbook)
HFB-BA-e-1814 15
4.2 Checking the original dimensions Enter the original dimensions of the product datasheet into the grey fields of the
checklist chap. 9.3. Realization of all safety checks, see chapter 9.2 „Regular maintenance after three
months“ Enter all data (date, tester, results) in the first line under „Inspection before first
use“ in the checklist (see chapter 9.3)
CAUTION
If the dimensions of your first safety inspection do not match those of KERN, the balance must not be put into operation. In this case please contact a service partner authorized by Messrs. KERN.
4.3 Rechargeable battery operation
CAUTION
Material damage on crane scales Only use the delivered mains adapter. Make sure that the mains adapter, the cable and the
mains plug are in a perfect condition. Do not use the crane scales during the loading process.
Before the first use, the rechargeable battery should be charged by connecting it to the mains power cable for at least 15 hours. The operating time of the rechargeable battery is approx. 40 hours. In case of a background illumination the operating time is reduced. Charging time until complete recharging is approx. 12h. To save the rechargeable battery, in the menu (see chap. 6) the automatic switch-off function „F7 off“ can be activated, switch-off time selectable after 0, 3, 5, 10, 20 minutes. If in the display an arrow [] appears above the battery symbol or „bat lo“, the capacity of the rechargeable battery soon will be exhausted. The balance will be ready to operate for about another 30 minutes, then it will switch off automatically. Connect the power cable as soon as possible to load the rechargeable battery. The LED display above informs you during loading about the loading status of the rechargeable battery.
red: Voltage has dropped below prescribed minimum.
green: Rechargeable battery is completely charged
yellow: The rechargeable battery is loaded. When the crane scales are out of operation for a longer period, remove the battery.
HFB-BA-e-1814 16
4.4 Suspending the balance
Condition The crane needs a safety bracket (1) that the unloaded crane scales cannot fall down. If the safety bracket is missing or damaged, please contact the crane manufacturer in order to receive a hook with this safety equipment. Suspend the crane scales on the lower hook of a crane and close the safety
bracket. The crane scale’s upper eyelet should rest in the saddle (2).
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5. Operation 5.1 Safety instructions
DANGER
Risk of injury due to falling loads!
Always work with particular care according to the general rules for crane operation.
Check all parts (hook, eyelet, rings, rope slings, cables, chains etc.) for excessive wear or damage
If faults can be seen on the safety bracket of the hook or if it is missing completely, the scales must not be used.
Work only with appropriate speed. Always avoid vibrations and horizontal forces. Avoid any
kind of shock, torsion and oscillating (e.g. caused by inclined suspending).
Do not use the crane scales for transport of loads
Do not stand or go under suspended loads.
Do not use on building sites.
Suspended loads have to be observed constantly.
(Example)
Do not exceed the nominal load of crane, crane scales or any kind of load attachment devices at the crane scales.
For weighing dangerous goods (e.g molten masses, radioactive materials) the “Dangerous Goods Regulations” are to be regarded!
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5.2 Loading the crane scales For good weighing results observe the following, illustrations see next page: Only use load attachment devices which guarantee a one-spot suspension and
where the scales can be suspended freely. Do not use too large load attachment devices which do not guarantee any one-
spot suspension. Do not use multiple suspensions. Do not pull or push the load or the loaded balance. Do not pull the hook horizontally. Loading the balance 1. Position the hook of the crane scales over the load. 2. Move downwards the crane scales until the load can be suspended on the hook
of the balance. Reduce the speed when the respective height is going to be reached.
3. Suspend the load on the hook. Ensure that the safety bracket is closed. If the load is fixed by slings, ensure that the slings rest completely on the saddle of the balance hook.
4. Lift-off the load slowly. When the load is fixed by slings, ensure that the load is well balanced on both sides and that the slings are correctly positioned
HFB-BA-e-1814 19
Only use load attachment devices which guarantee a one-point suspension and where the scales can be suspended freely.
Do not use too large load attachment devices which cannot guarantee a one-point suspension.
HFB-BA-e-1814 20
Do not push or pull Do not pull the hook horizontally
Do not use multiple suspensions
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5.3 Turn on/off Start-up Press the ON/OFF button on the balance keyboard. The display lights up and the
balance carries out a selftest. The selftest is completed when the weight value 0 appears on the display.
Switch on only possible at the keyboard of the balance.
Switching Off Press the ON/OFF button on the balance keyboard.
5.4 Setting the balance to zero In order to obtain optimal weighing results, reset to zero the balance before weighing. Further adjustments are possible in the menu, see chapter 6. Manual Unload the balance Press the ZERO button, the balance begins to reset to zero.
The [] symbol over a appears.
Automatic In the menu can be changed the amount of the automatic zero point correction, see chap. 6 / Function „F3 a2n“.
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5.5 Taring Suspend preload.
Press the TARE button, the zero display and the [] symbol above TARE will appear. The weight of the container is now internally saved.
Weigh the material, the net weight will be indicated. After removing the preload weight appears as negative display. To delete the tare value, remove load from crane scales and press the TARE
button.
5.6 Weighing Load the crane scales.
The weight value will be displayed at once.
Overload warning Overloading exceeding the stated maximum load (max) of the balance, minus a possibly existing tare load, must be strictly avoided. This could cause damage to the balance. Exceeding the maximum load is indicated by the display „--ol-“. Unload balance or reduce preload.
HFB-BA-e-1814 23
5.7 Record weight value (freeze)
Press the HOLD button to „freeze“ or to record the current weight value. It remains displayed until it is deleted. The [] symbol above HOLD appears.
In order to delete the "frozen" or the recorded weight, press the HOLD button. The [] symbol above HOLD extinguishes.
6. Menu Navigation in the menu:
Call function Switch-on balance and during the selftest
press the TARE button. The first function F0CAP is displayed.
Select function The TARE button allows to select the individual functions one after the other.
Select setting Confirm the selected function by the ZERO button. The current setting will be displayed.
Change settings Use the TARE button to switch over into the available settings.
Confirm setting Press down and hold the ZERO button, the balance returns to the menu
Exit menu / Return to weighing mode Press the UNIT button.
HFB-BA-e-1814 24
Overview:
Function Available settings Description
F0 CAP Select capacity
30k Max = 30 kg
Mod
ifica
tions
may
onl
y be
car
ried
out b
y
a sp
ecia
list w
ith c
ompe
tent
kno
wle
dge.
60k Max = 60 kg
150k Max = 150 kg Default setting HFB 150K50
300k Max = 300 kg Default setting HFB 300K100
600k Max = 600 kg Default setting HFB 600K200
F1 unit Not documented
F2 res Select resolution
inC 5* 5
inC 10 10
F3 a2n Automatic zero point correction (zero tracking)
0.5 d 0.5 d
1 d* 1 d
2 d 2 d
4 d 4 d
F4 Flt Filter
Flt 1 fast
slow
Flt 2*
Flt 3
Flt 4
Flt 5
F5 inP Internal A/D converter value
F6 bk Display background illumination
bk Au Background illumination switches on automatically when loaded or a button is pressed
bk of Background illumination off
bk on Background illumination on
F7 off Automatic shutdown function
of 0 Balance will switch-off automatically after the set period. Selectable 0/3/5/15/20 minutes.
of 3
of 5
of 10
of 20
F8 Grv Not documented
F9 CAL Adjustment, see chapt. 7 * = default setting
HFB-BA-e-1814 25
7. Adjustment Switch-off balance and attach a carrying help if necessary. Switch-on balance with attached carrying help and during the selftest press the
TARE button. The first function “F0CAP“is displayed.
Press the TARE button repeatedly until „F9 CAL“ will be displayed.
Press the ZERO button, „UnlD“ is displayed. Unload the balance, wait until the [] symbol above HOLD appears.
Press the ZERO button, the currently set adjustment weight is displayed. In order to change, select the number to be changed by the HOLD button and set
the desired value using the TARE button, the active digit flashes. Confirm by the ZERO button, „Load“ will be displayed. Attach the adjustment weight and wait until the [] symbol above HOLD appears
Press the ZERO button.
After successful adjustment the balance carries out a selftest, then it
automatically returns to weighing mode. An adjusting error or incorrect adjusting weight will be indicated by the error message; repeat adjustment procedure
HFB-BA-e-1814 26
8. Error messages Error message
Description Possible causes
--ol- Maximum load exceeded Reduce load Check whether the balance has
been damaged
Err 4 Zeroing range exceeded (normally 4% max) Overload when zeroing
Err 5 Keyboard error Improper operation of the balance
Err 6 Value outside the A/D changer range
Weighing plate not installed Damaged weighing cell Damaged electronics
Err 9 At an instable weighing value ZERO or TARE button actuated
Wait for a stable weighing value
Err 17 Tare value out of range Reduce tare load
Ba lo Capacity of rechargeable battery exhausted Recharge battery
Should other error messages occur, switch balance off and then on again. If the error message remains, inform manufacturer.
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9. Cleaning, Repair, Maintenance and Disposal
Danger
Risk of injury and risk of material damage! The crane scales are part of a hoisting device! For a safe operation please observe the following:
Have carried out a regular maintenance by trained specialized staff
Carry out regular maintenance and care, see chapter 9.2 and 9.3 Have the parts exchanged only by trained specialized staff. If there arose discrepancies with the safety checklist, the balance
must not more be put into operation. Do not repair the crane scales by yourself. Repair may only be
carried out by service partners authorized by Messrs. KERN.
9.1 Cleaning and Disposal
CAUTION
Damage on the crane scales!
Do not use any industrial solutions or chemicals
Clean the keyboard and the display with a soft cloth soaked in mild window cleaning agent.
Disposal of packaging and appliance must be carried out by operator according to valid national or regional law of the location where the appliance is used.
9.2 Regular maintenance and care The regular 3-month maintenance may only be carried out by an expert with
competent knowledge of working with crane scales. Thereby the national regulations for prevention of accidents as well as the working, operation and safety regulations of the owner-operator must be observed.
To check the dimensions only use suitable test devices. The regular 12-month maintenance must only be carried out by trained
specialized staff (KERN customer service). The results of the maintenance must be written down in the checklist (chap. 9.3). The additional results of the extended maintenance have to be entered in the
checklist (chapter 10.1). The replaced spare parts also must be entered, (chapter 10.2)
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Regular maintenance:
Prior to each usage Check the firm fit of the nut (A) and safety disk (B).
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Initial Commissioning, every 3 months or anyway after 12 500 weighings
Check all dimensions, see checklist chap. 9.3 Check the application of the safety bracket on the hook,
moreover check for fault and correct function Check the stable fit of the eyelet. Visual check of chain for damage and corrosion. Check the chain and the eyelet for wear and tear, such as
e.g. plastic deformation, mechanical damage (unevenness), notches, striation, cracks, corrosion, thread damage and torsions.
If a dimension exceeds the admitted deviation from the original dimension (see checklist, chap. 9.3) or if other discrepancies have been found, the balance must be repaired at once by trained specialized staff (KERN customer service). Never do repair it by yourself! Take balance out of operation immediately! All repairs and spare parts must be documented by the service partner (see list, chap. 10.2).
Every 12 months or in any case after 50 000 weighings
If the enhanced maintenance has to be carried out by trained staff (KERN customer service). At this general revision all load carrying parts must be checked for gaps with magnetic powder
Components Testing Position Lock washers Check for tight fit and for
damage Bolt
Splint Check for tight fit and if deformed
Nut Lock washers
Chain Visual check for damage and corrosion
Safety bracket Visual check for damage and corrosion
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All inspections must be registered in the checklist (chap. 9.4).
Every 5 years or anyway after 250 000 weighings
All load carrying parts have to be exchanged by trained specialized staff (KERN customer service).
Every 10 years or anyway after 500 000 weighings
Replace the crane scales entirely
Note During the revision watch out for wear and tear according to the following drawings (chap. 9.3).
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9.3 Checklist „regular maintenance“, (see chapter 9.2)
Original dimensions crane scales, serial no.: ………………………………… Capacity ………………………………
Eyelet Hooks
a (mm) b (mm) Wear and tear c (mm) d (mm) Angle α (°)
Date ………………………………… Tester ……………………………………… These data can be found in the document attached to the balance. Please keep this document always available.
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Eyelet Hooks Chain
a b Wear and tear (see grey fields) c d Angle α Wear and tear (see grey fields)
Safety bracket No damage or corrosion
(see grey fields) Date Tester
Max. admitted variation 5 % 0 %
No deformation or cracks
10 % 5 % 10 °
No deformation or cracks
Perfect working order
Revision prior to first use
3 months / 12 500 x
6 months / 25 000 x
9 months / 37500 x
12 months/ 50 000 x
15 months / 62 500 x
18 months / 75 000 x
21 months / 87 500 x
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Eyelet Hooks Chain
a b Wear and tear (see grey fields) c d Angle α Wear and tear (see grey fields)
Safety bracket No damage or corrosion
(see grey fields) Date Tester
Max. admitted variation 5 % 0 % No deformation or cracks 10 % 5 % 10 °
No deformation or cracks
Perfect working order
Revision prior to first use
24 months / 100 000 x
27 months/ 112 500 x
30 months/ 125 000 x
33 months/ 137 500 x
36 months/150000 x
39 months /162 500 x
42 months /175 000 x
45 months /187 500 x
48 months/200000 x
51 months /212 500 x
54 months /225 000 x
57 months /237 500 x
60 months/250000x All load carrying parts have to be exchanged by a service partner authorised by KERN.
bold letters = this maintenance work has to be carried out by a service partner authorized by KERN.
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Eyelet and hook Chain
HFB-BA-e-1814 35
9.4 12-month maintenance (see chap. 9.2)
Tight fit / damage Tight fit / deformation Visual check for damage / corrosion
Lock washers Bolt Split pin Nut Lock washers Chain Safety bracket Date Tester
12 months / 50 000 x
24 months / 100 000 x
36 months / 150 000 x
48 months / 200 000 x
60 months / 250 000x All load carrying parts have to be exchanged by a service partner authorised by KERN.
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10. Appendix 10.1 Checklist „Enhanced maintenance“ (General revision) The enhanced maintenance has to be carried out by a service partner authorized by KERN.
Crane scales Model ………………………………….. Serial no. ……………………………………………..
Interval Magnetic powder test for cracks Hooks Eyelet Screwed connections Date Name Signature
12 months / 50 000 x
24 months / 100 000 x
36 months / 150 000 x
48 months / 200 000 x
60 months / 250 000 x
72 months / 300 000 x
84 months / 350 000 x
96 months / 400 000 x
108 months /450 000 x
120 months/500 000x Replace crane scales entirely
HFB-BA-e-1814 37
10.2 List „spare parts and repair of safety-relevant parts“ Repair has to be carried out by a service partner authorized by KERN.
Crane scales Model ………………………………….. Serial no. ……………………………………………..
Part Action Date Name Signature
1. Technical Data1.1 Dimensions1.2 Nameplate1.3 EC-Declaration of -Conformity
2. General Safety Instructions3. The crane scales at a glance3.1 Overview3.2 Display3.3 Keyboard3.4 Numerical input via the navigation buttons3.5 Radio remote control3.6 Sticker
4. Commissioning4.1 Unpacking4.2 Checking the original dimensions4.3 Rechargeable battery operation4.4 Suspending the balance
5. Operation5.1 Safety instructions5.2 Loading the crane scales5.3 Turn on/off5.4 Setting the balance to zero5.5 Taring5.6 Weighing5.7 Record weight value (freeze)
6. Menu7. Adjustment8. Error messages9. Cleaning, Repair, Maintenance and Disposal9.1 Cleaning and Disposal9.2 Regular maintenance and care9.4 12-month maintenance (see chap. 9.2)
10. Appendix
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